Commit Graph

5 Commits

Author SHA1 Message Date
nerd73
263c48a49b Implement F0000-FFFFF shadowing on the OPTi 291
The datasheet only gave a small reference to it in passing. Port 92 is also implemented as it is also present on the 291.
2020-07-08 01:41:18 -06:00
nerd73
2b06dbc10b Merge branch 'opti291' of https://github.com/nerd73/86Box into opti291 2020-07-03 03:09:48 -06:00
nerd73
ff000b53cc actually make it work this time 2020-07-03 03:09:09 -06:00
nerd73
6a9fa51d78 fix header 2020-07-03 00:24:48 -06:00
nerd73
5b260dbfd4 Add a 386SX Award v4.20 machine
As well as a basic implementation of the OPTi 291 chipset that it uses.
2020-07-03 00:18:16 -06:00